Removing Rear Cardan Shaft

→ When one of the two flanges on the cardan shaft has been released, relieve the tension on the centre bearing.

→ Do not leave the cardan shaft hanging. Always screw in all three fastening points for transmission, centre bearing and rear final drive.

→ Follow the recommended procedures during installation, otherwise the position of the cardan shaft in its original place is no longer guaranteed.

Information 

• The colour marking, match point -arrow- , on the cardan shaft and on the flange of the rear final drive must be aligned. This will neutralise the residual imbalance of the components. 
  Fig 1: Locating Matching Points On Cardan Shaft To Final Drive

  Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information 

• If the cardan shaft or transfer box has to be replaced, please ignore the next step. 
• Marking the position of the cardan shaft with respect to the transfer box triangular flange serves only to prevent possible humming noises. 

Information 

• To prevent the cardan shaft from being damaged, a second mechanic is required to remove the equipment. 

Fig 2: Overview Of Cardan Shaft

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Move selector lever to position N.
2. The position of the cardan shaft -arrows-  with respect to the rear axle differential flange is marked with a white dot - match point - on both components.
   Fig 3: Locating Matching Points On Cardan Shaft To Final Drive

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Mark the position of the cardan shaft -arrow-  with respect to the transfer gear flange with a coloured pen.
   Fig 4: Locating Marking On Rear Cardan Shaft To Transfer Gear

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Loosen fastening screws -arrow-  securing cardan shaft support to centre bearing.
   Fig 5: Locating Cardan Shaft Support To Centre Bearing Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   NOTE: Incorrect tools used for removing components

   • Risk of damage to components

   → Do not use tools, such as a hammer or similar object.

   → Spray components with anti-rust agent before removing them.

   Information 

   • To loosen the cardan shaft on the rear axle transmission, a second fitter should counter the fastening screws -arrows- at the triangular flange of the transfer box. 
   Fig 6: Locating Rear Cardan Shaft To Transfer Box Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
5. Unscrew fastening screws on the cardan shaft at the rear axle differential to rear final drive.
   Fig 7: Loosening Cardan Shaft To Rear Final Drive Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Information 

   • The screws securing the flexible disc to the cardan shaft must not be loosened. 
6. Unscrew fastening screws -arrows-  used to secure the cardan shaft to the transfer gear. Counter with an open-ended wrench.
   Fig 8: Locating Cardan Shaft To Transfer Gear Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
7. Release cardan shaft centre bearing holder. To do this, unscrew six fastening screws -arrows-  .
   Fig 9: Locating Cardan Shaft Centre Bearing To Body Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
8. Carefully separate cardan shaft from transfer gear, pressing backwards.
   Fig 10: Removing Cardan Shaft

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
9. Remove cardan shaft.